APA (7th ed.) Citation

Williamson, A. K., Prudic, D. E., & Swain, L. A. (1989). Ground-water flow in the Central Valley, California. US Gov. Print. Off.

Chicago Style (17th ed.) Citation

Williamson, Alex K., David E. Prudic, and Lindsay A. Swain. Ground-water Flow in the Central Valley, California. Washington, D.C: US Gov. Print. Off, 1989.

MLA (9th ed.) Citation

Williamson, Alex K., et al. Ground-water Flow in the Central Valley, California. US Gov. Print. Off, 1989.